Please tell me which model did you buy
Kindle ships with a U.S. power adapter and a Kindle micro-USB cable. You can charge your Kindle by connecting it to your computer via the Kindle micro-USB cable or by connecting it to a wall socket using the Kindle micro-USB cable and the Kindle U.S. power adapter plug. The light on your Kindle next to the USB socket will appear yellow when charging and change to green when Kindle is fully charged.
When using the Kindle micro-USB cable to charge your Kindle via your computer, charging time will normally take 4 to 6 hours.
To charge your Kindle from a computer via Kindle micro-USB cable:
Connect Kindle directly to a USB port on your computer.
After charging it up, check the power button. The Power switch on top of Kindle puts it to sleep, wakes it up, and turns your Kindle on or off.
To wake up or turn on your Kindle: Slide and release the power switch again.
To put your Kindle to sleep: Slide and release the power switch. (Other keys and buttons are locked in Sleep mode.)
To turn your Kindle off: Slide and hold the power switch for four seconds until the screen goes blank and then release.
To reset your Kindle: Disconnect your Kindle from any power source, and then slide and hold the power switch for 15 seconds before releasing.
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